The machine (F) has a setting and regulating device for setting operation temperature of hydraulic medium to about 60[deg] C. The hydraulic medium cooling region includes a cooler having a fan that is switched ON and OFF, while regulating the speed of fan. The hydraulic medium cooler is structurally separated from the cooling liquid cooling region. The fan is connected with the setting and regulating device. A thermostatic valve controlled by the setting and regulating device is arranged in the hydraulic circuit within a bypass deviating from the cooler.
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